Journal of graph theory. 1980;4(3):279-286. doi: 10.1002/jgt.3190040305 Q21.02025
Covers and strong covers in directed bipartite graphs
DOI: 10.1002/jgt.3190040305
摘要
Journal of graph theory. 1980;4(3):279-286. doi: 10.1002/jgt.3190040305 Q21.02025
DOI: 10.1002/jgt.3190040305
摘要